Mechanical movement.



No. 702,099. Patented lune I0, 1902;

J. n. A. JOHNSON. MECHANICAL MOVEMENT.

(Application filed Au 16, i901.) I (No Model.)

M lv

ATTORNE YJ.

UNITED STATES PATENT OFFICE.

JOHN D. A. JOHNSON, OF OMAHA, NEBRASKA, ASSIGNOR TO RICHMOND CEDARWORKS, OF HENRICOCOUNTY, VIRGINIA, A CORPORATION OF VIRGINIA.

MECHANICAL Ii/liOl/EMENT.

SPECIFICATION forming part of Letters were No. 702,099, dated June 10,1902. Application filed August 126, 1901. Serial lid-'72, 307." ,(N07model.)

new and useful Improvements in Mechanical Movements, of which thefollowing'is a specification, reference being had to the accompanyingdrawings, in which 10 Figure 1 is a vertical sectional view showing myinvention applied t'o aiwashing-machine; Fig. 2, ahorizontalsectiontaken on the line 2 of Fig. 1, one of the antifrictionrollers on thepin-teeth being shown in section; and Fig. 3, partlya side and partly asectional elevation of the pinion and its shaft.

The object of this invention is to provide a simple and economicaldevice for rotating a shaft, preferably an agitator-shaft of awashing-machine, alternately in opposite directions by a continuousrotary movement of a drive-shaft; and it consists of certain novelfeatures of construction hereinafter described, and particularly pointedout in the 2 5 claims.

The letter a designates the shaft to be driven, it being in the presentinstance the vertical agitator-shaft of a washing-machine and beingjournaled in arms I) b of a bracket attached to the washing-machinecover. This" shaft dis supported in its bearings bymeans' of acylindrical enlargement or sleeve 0, which nicely fits between the armsbb. Extending about half-way around this cylindrical pertion, aboutmidway the endsof the enlargement, is a row of radial pins d, each ofwhich is provided with an antifriction sleeve or roller, and entirelysurrounding the row of pins is a continuous groove e, whose upper 40 andlower parts. are substantially parallel with each other and with the rowof pins and whose ends are semicircular in shape where they pass aroundthe respective ends of therow of pins or teeth.

The drive-shaft f is journaled in a suitable bearing g and has one endentering the continuous groove e, this end being provided with anantifriction-roller h. Near the roller h on shaft f is secured a pinion11, which is held constantly in engagement with pins 1).

The drive-shaft f is provided with a suitable and State of Nebraska,have invented certain universal jointj at a suitable point between 'theshaft-bearing and the pinion 'i. -be observed that when shaft f isrotated continuously in one direction the pinion will enlgage :thepins dand cause the shaft a to be It will rotated, and sby reason of thecam-groove e the pinion will be caused to pass around the end pins'andengage the pins on the opposite side,.so that the driven shaft a will berotatedabout seven-eighths of a turn in one dire'ctionf and then bereversed and rotated i about seven-eighths of a'turn in the otherdirection, and so on as long as the drive-shaft is rotated. It will beobserved that this arrangement avoids the employment of a reciprocatingsleeve on the agitator-shaft and other more or less complicatedconnections,

The letter Z designates a standard connecting the upper and lowerbearings b, which is slotted vertically at k for the passage of thedrive-shaft f. This slotted standard, besides supporting the upperbearing b, affords means to prevent the drive-shaft shifting laterallyfar enough to leave the pins or teeth. It will also be observed that theend of the shaftcarrying roller h will rest-upon the bottom of thegroove while the pinion is engaging the upper sides of the teeth,whereby the driveshaft will be supported at both its ends, which=willprevent (the weight of the inner part of the shaft andi'the pinionbeing carried on the 'pins or teeth, and thereby increasing friction andwear. .While'the pinion is workingunder' the pins the roller h will restupon the bottom of the lower side of the groove, and thereby maintainthe proper mesh with the pins. In this manner the standardl need Konlybeused as a vertical guide and not as a support or hearing for thedrive-shaft.

L- I Having thus fullydescribed my invention,

what I claim, and desire to obtain by Letters Patent, is-- r I 1. Incombination, a support,a driven shaft provided with a cylindricalportion having a row of pins or teeth radially arranged and ex tendingpart way around saidcylindrical part, said cylindrical part being alsoprovided in its periphery with an external groove extending around saidrow of pins, a drive-shaft Ice and a stationary bearing therefor, saidshaft being provided with a pinion in constant mesh with the aforesaidrow of pins and with a universal joint between its bearing and thepinion and having its inner end extending beyond said pinion and workingin said groove,

the bottom of the upper part of the groove serving as a bearing or restto support the inner end of the shaft while the pinion is in engagementwith the upper sides of the pins or teeth, and an upright guide for thedriveshaft located between the pinion and the joint in the shaft as andfor the purpose set forth.

2. In combination, a support, adriven shaft provided with a cylindricalenlargement having a row of pins or teeth radially arranged thereon andextending part way around said cylindrical portion, bearings 11 bengaging the ends of said cylindrical enlargement and holding the drivenshaft against endwise movement, a driving-shaft and a stationary bearingtherefor, a pinion carried by said shaft and meshing with said pins orteeth, said shaft being jointed at a point between said pinion and saidbearing and having its end projecting beyond the pinion, a slotted.standard connecting the bearings b I) through which said drive-shaftworks, said standard being located between the pinion and the joint inthe shaft, and guiding means whereby when said drive-shaft is rotatedcontinuously in one direction said pinion will be caused to first engagethe upper side of said row of pins or teeth and then the lower sidethereof and so on alternately, said guiding means consisting of a groovein the cylindrical enlargement in which'the projecting end of the shaftworks and is supported.

In testimony whereof I hereunto affix my signature, in the presence oftwo witnesses, this 12th day of August, 1901.

JOHN D. A. JOHNSON.

Witnesses:

EDWARD W. I-IUNLAN, PAUL L. 1\[ARTIN.

